1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elina [12.6K]
3 years ago
13

To the nearest tent what is the area of circle whose diameter is 21 inches

Mathematics
1 answer:
xxMikexx [17]3 years ago
8 0

Answer:

It depends

Step-by-step explanation:

Area of a circle is given by

A = pi *r^2

We can find the radius by taking 1/2 of the diameter

r= 1/2(21)

r = 10.5

A = pi * (10.5)^2

A = 110.25 pi

Approximating pi with 3.14

A = 110.25 * 3.14

A =346.185 in^2

To the nearest tenth

A = 346.2 in^2

If we use the pi button on the calculator

A = 346.3605901

Rounding to the nearest tenth

A = 346.4 in^2

You need to determine whether you approximate pi by 3.14 or use the pi button on your calculator

You might be interested in
Negative 1.5 (4 minus r) = negative 12
umka2103 [35]

Answer:

r = - 4

Step-by-step explanation:

Given

- 1.5(4 - r) = - 12 ( divide both sides by - 1.5 )

4 - r = 8 ( subtract 4 from both sides )

- r = 4 ( multiply both sides by - 1 )

r = - 4

3 0
3 years ago
Read 2 more answers
If f(x) - 4x2 - 3 and g(x) = x+1, find (f- g)(x).
igomit [66]

Answer:

Given f(x) = 2x + 3 and g(x) = –x2 + 5, find ( f o f )(x). ... Given h(x) = sqrt(4x + 1), determine two functions f (x) and g(x) which, when composed, generate h(x).

Step-by-step explanation:

4 0
3 years ago
Can someone please help me on this please I beg you no links I really appreciate it plz
madam [21]
Pretty sure you’re right!
3 0
3 years ago
A ham sandwich consists of one slice of ham (9 grams) and two slices of bread (25 grams each). you have 1 kg of ham and 1.2 kg o
jok3333 [9.3K]
The rule of thumb for this kind of problem is that you must first determine the limiting variable in your situation. We know that for a single sandwich, 50 grams bread greatly exceeds the 9 grams of ham requirement. We also know that there will be a greater supply of ham since 1 kg is relatively close in amount to 1.2 kg. This means that we only need to look at the bread for calculation purposes. We can get the total number of sandwiches to be 1200 / 50 = 24 sandwiches.
8 0
3 years ago
I’m confused on questions c-f
Nadya [2.5K]
I gotchu !! just give me a moment to write it out
4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve y = 7x-3w for x
    5·2 answers
  • The area of the dining room at Thomas Jefferson so I'm in Monticello is about 342 ft.² is the approximate length of one side is
    15·1 answer
  • Please help!! I'm desperate!!
    13·1 answer
  • Which line on the graph below has a slope of zero?<br><br><br> P<br> Q<br> R<br> S
    8·2 answers
  • 1 - Um cilindro com êmbolo móvel contém um gás à pressão de 4,0.10*4N/m*2. Quando é fornecido 6 kJ de
    11·1 answer
  • What is 0.98 times 7.3
    13·2 answers
  • A stereo salesperson earns a salary of $1900 per month, plus a commission of 4% of sales. The salesperson wants to maintain a mo
    14·1 answer
  • An amount of $48,000 is borrowed for 12 years at 3% interest, compounded annually. If the loan is paid in full at the end of tha
    7·1 answer
  • Martinez purchased a pair of shoes on a web site. The original price of the shoes was $75. She used a coupon code to receive a 2
    5·2 answers
  • Determine the unknown side lengths.<br><br> X= ?<br><br> Y= ?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!